SPECIALIZED EXPERIENCE: (WG08) Must possess at least Twelve (12) months experience or training planning, manufacturing, and installing cylindrical, square, or rectangular-shaped objects that have easily constructed fastening; experience cutting and forming by using basic hand and powered tools such as hammers, chisels, hand snips, band and circle saws, squaring shears, seamers, bar folders, breaks, and stakes; experience assembling parts by seaming, bolting, screwing, riveting, tacking, spot-welding, or soldering; experience demonstrating a basic understanding of using measuring instruments. (WG10) Must possess at least Eighteen (18) months experience or training in planning, layout, and construction skills to manufacture items and systems with dovetailed seams, set-in-bottom seams, burred-bottom seams, or wired or lock seams; experience using more complicated shop tools and equipment; experience in using metals including stainless steel, copper sheet, magnesium, honeycomb material and alloys; experience demonstrating the use of more complicated mathematical calculations and complicated measuring instruments.